Plastic limit loads for idealized branch junctions under combined pressure and bending

Kuk Hee Lee, Kang Mook Ryu, Yun Jae Kim, Ki Bong Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Closed-form yield loci are proposed for branch junctions under combined pressure and in-plane bending, via small strain, three-dimensional FE limit load analyses using elastic-perfectly plastic materials. Comparison with extensive FE results shows that predicted limit loads using the proposed solutions are overall conservative and close to FE results. The proposed solutions are believed to be valid for the branch-to-run pipe radius and thickness from 0.0 to 1.0, and the mean radius-to-thickness ratio of the run pipe from 5.0 to 20.0.

Original languageEnglish
Title of host publication17th European Conference on Fracture 2008
Subtitle of host publicationMultilevel Approach to Fracture of Materials, Components and Structures
Pages2538-2545
Number of pages8
Publication statusPublished - 2008 Dec 1
Externally publishedYes
Event17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 - Brno, Czech Republic
Duration: 2008 Sep 22008 Sep 5

Publication series

Name17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures
Volume3

Other

Other17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17
CountryCzech Republic
CityBrno
Period08/9/208/9/5

Keywords

  • Branch junction
  • Combined pressure and in-plane bending
  • Finite element analysis
  • Limit load

ASJC Scopus subject areas

  • Civil and Structural Engineering

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  • Cite this

    Lee, K. H., Ryu, K. M., Kim, Y. J., & Yoon, K. B. (2008). Plastic limit loads for idealized branch junctions under combined pressure and bending. In 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures (pp. 2538-2545). (17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures; Vol. 3).